项目名称: 复杂环境中利用传感器网络局部拓扑结构的错误容忍移动定位方法研究
项目编号: No.61202351
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 计算机科学学科
项目作者: 顾晶晶
作者单位: 南京航空航天大学
项目金额: 25万元
中文摘要: 利用无线传感器网络(WSN)的移动定位技术已受到广泛关注,是网络监测活动的基本功能之一。然而在复杂环境中,受网络攻击、环境、障碍物和硬件错误等影响,节点采集到的数据易被(恶意)篡改,产生错误数据,从而对定位造成严重影响。由于受WSN能耗等因素的限制,需要额外硬件辅助的检测方法在WSN中并不可行,并且也无法保证能检测出所有的错误数据。本项目旨在针对上述问题,基于充分挖掘WSN中信号强度和物理地址空间的局部拓扑结构信息以及它们之间的映射关系,建立相应模型,发展出若干简单、灵活且具有较高鲁棒性的移动目标定位方法。主要研究内容大致包括:1)构建基于WSN局部拓扑信息的移动定位模型;2)复杂环境下WSN中错误数据的容忍能力的数学表示方法;3)构建复杂环境下传感器网络中错误容忍的移动定位模型;4)实验评估。
中文关键词: 无线传感网络;错误容忍;移动定位;;
英文摘要: Wireless Sensor Network(WSN)-based mobile localization technique, as one fundamental component of the network monitor, has attracted more and more attentions. However, some of the collected data easily result in faulty data with large biases due to the network attacks, network environments, large obstacles and hardware errors, which brings a big challenge for localization. Furthermore,due to the limits of energy in WSN, The localization method relying on extra hardwares is not applicable and can not pick up all the faulty data. In this proposal, we try to develop a number of simple, flexible and high robust mobile target localization algorithms to solve this problem, by establishing appropriate models, based on sufficiently characterizing local topology information of the signal strength and the physical location in WSN as well as the mapping between them. The main research contents include: 1) construct mobile target localization model based on the local topology information of WSN; 2) build fault-tolerant mathematical model of WSN in complex enviroments; 3) build fault-tolerant mobile localization model in complex enviromental networks; 4) experimental evaluation.
英文关键词: Wireless Sensor Network;Fault Tolerance;Mobile Localization;;